Ligia Antezana

Ligia Antezana
University of Pittsburgh | Pitt · Department of Psychiatry

Doctor of Philosophy

About

24
Publications
5,013
Reads
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577
Citations
Citations since 2017
19 Research Items
500 Citations
2017201820192020202120222023020406080100120
2017201820192020202120222023020406080100120
2017201820192020202120222023020406080100120
2017201820192020202120222023020406080100120
Additional affiliations
May 2012 - July 2015
The Children's Hospital of Philadelphia
Position
  • Research Assistant
June 2011 - August 2012
National Institute of Mental Health (NIMH)
Position
  • Undergraduate Research Volunteer

Publications

Publications (24)
Article
Full-text available
Introduction Emotion dysregulation is commonly reported among autistic individuals. Prior work investigating the neurofunctional mechanisms of emotion regulation (ER) in autistic adults has illustrated alterations in dorsolateral prefrontal cortex (dlPFC) activity, as well as concurrent atypical patterns of activation in subcortical regions related...
Article
Full-text available
PEERS® for Preschoolers (P4P) is a social skills group program for young autistic children and their caregivers, which provides everyday tools for interacting and communicating with others. Twenty-two caregiver-child dyads participated and completed pre-treatment, post-treatment, and follow-up measures (4–16 weeks after). Using single-subject analy...
Article
Objective: The present study sought to measure and internally validate neural markers of facial emotion recognition (FER) in adolescents and young adults with ASD to inform targeted intervention. Method: We utilized fMRI to measure patterns of brain activity among individuals with ASD (N = 21) and matched controls (CON; N = 20) 2 s prior to judg...
Article
Full-text available
Emotion dysregulation is common among autistic people, yet few measures have received psychometric evaluation in this population. We examined the factor structure, reliability, and validity of a commonly-used measure of emotion dysregulation, the Difficulties with Emotion Regulation Scale (DERS), in a sample of 156 autistic adolescents and adults....
Article
This randomized controlled trial examined the effects of mindfulness on anhedonic symptoms in a sample of adults reporting high levels of chronic stress. Meditation-naïve adults (N = 68, Mage = 32, 62% female) were randomized to either an 8-week group-based MBSR intervention (N = 35), or a waitlist control group (N = 33). We hypothesized that chang...
Article
Full-text available
Measurement-based care (MBC), an evidence-based approach that has demonstrated efficacy for improving treatment outcomes, has yet to be investigated in clients with Autism Spectrum Disorder. The current paper investigates the use of MBC in autistic (n = 20) and non-autistic (n = 20) clients matched on age, sex, and presenting problem. Results of ch...
Article
Full-text available
Autism Spectrum Disorder (ASD) impacts not only the child with ASD, but also the entire family system, including siblings. The present study examined perceptions of the sibling relationship in brothers and sisters of children with ASD, as well as how understanding of autism (symptoms, long-term implications of the disorder) in siblings of children...
Preprint
This randomized controlled trial examined the effects of mindfulness on anhedonic symptoms in a sample of adults reporting high levels of chronic stress. Meditation-naïve adults (N=68, Mage=32, 62% female) were randomized to either an 8-week MBSR intervention group (N=35), or to a waitlist control group (N=33). We hypothesized that changes in mindf...
Article
Full-text available
Traditional self-injurious behavior (SIB) management can place compliance demands on the caregiver and have low ecological validity and accuracy. To support an SIB monitoring system for autism spectrum disorder (ASD), we evaluated machine learning methods for detecting and distinguishing diverse SIB types. SIB episodes were captured with body-worn...
Article
Full-text available
Restricted and repetitive behaviors and interests (RRBI) have garnered attention for their presenting sex differences in Autism Spectrum Disorder (ASD). Specifically, previous works have claimed that RRBI are less predictive of an ASD diagnosis for females relative to males. Previous reports have demonstrated mixed findings: females present with gr...
Article
Young children with autism spectrum disorder (ASD) struggle with emotion regulation (ER), which is developmentally preceded by lability/negative affect (L/N), and their parents face unique challenges to parenting and providing assistance. The Stress and Anger Management Program (STAMP) is a cognitive-behavioral treatment designed to address ER defi...
Article
Previous work has found gender differences in restricted and repetitive behaviors and interests (RRBI) for autism spectrum disorder (ASD). Compared to girls, affected boys have increased stereotyped and restricted behaviors; however much less is known about gender differences in other areas of RRBI. This study aims to identify whether specific RRBI...
Article
Full-text available
Background: Neurobiological research in autism spectrum disorders (ASD) has paid little attention on brain mechanisms that cause and maintain restricted and repetitive behaviors and interests (RRBIs). Evidence indicates an imbalance in the brain's reward system responsiveness to social and non-social stimuli may contribute to both social deficits...
Article
Full-text available
Distorted empathic processing has been observed across multiple psychiatric disorders. Simulation theory provides a theoretical framework that proposes a mechanism through which empathy difficulties may arise. Specifically, introspection-centric simulation theory predicts that an inability to accurately interpret and describe internal affective sta...
Article
Full-text available
Rural communities face significant challenges regarding the adequate availability of diagnostic-, treatment-, and support-services for individuals with autism spectrum disorder (ASD). Specifically, a variety of factors, including geographic distance between families and service providers, low reliance on health care professionals, and cultural char...
Article
Full-text available
Scientists and clinicians regularly use clinical screening tools for attention deficit/hyperactivity disorder (ADHD) to assess comorbidity without empirical evidence that these measures are valid in youth with autism spectrum disorder (ASD). We examined the prevalence of youth meeting ADHD criteria on the ADHD rating scale fourth edition (ADHD-RS-I...
Article
Analogical reasoning is an important mechanism for social cognition in typically developing children, and recent evidence suggests that some forms of analogical reasoning may be preserved in autism spectrum disorder. An unanswered question is whether children with autism spectrum disorder can apply analogical reasoning to social information. In all...
Article
Full-text available
In typical development there is a bias to orient visual attention to social information. Children with ASD do not reliably demonstrate this bias, and the role of attention orienting has not been well studied. We examined attention orienting via the inhibition of return (IOR) mechanism in a spatial cueing task using social-emotional cues; we studied...
Article
Autism spectrum disorder (ASD) is often associated with high levels of inflexible thinking and rigid behavior. The neural correlates of these behaviors have been investigated in adults and older adolescents, but not children. Prior studies utilized set-shifting tasks that engaged multiple levels of shifting, and depended on learning abstract rules...
Conference Paper
Background: Self-regulation enables individuals to make decisions, control impulses or thoughts, and to engage in pro-social behavior. Impaired self-regulation contributes to pervasive impairments and poor outcomes in a variety of childhood disorders, including children with autism spectrum disorders (ASD). A number of studies have examined cogni...
Article
Background: Early brain overgrowth (EBO) in autism spectrum disorder (ASD) is among the best replicated biological associations in psychiatry. Most positive reports have compared head circumference (HC) in ASD (an excellent proxy for early brain size) with well-known reference norms. We sought to reappraise evidence for the EBO hypothesis given 1)...

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